25002213755 has 4 divisors (see below), whose sum is σ = 30002656512. Its totient is φ = 20001771000.

The previous prime is 25002213739. The next prime is 25002213781. The reversal of 25002213755 is 55731220052.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25002213755 - 2⁴ = 25002213739 is a prime.

It is a super-2 number, since 2×25002213755² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2500221371 + ... + 2500221380.

It is an arithmetic number, because the mean of its divisors is an integer number (7500664128).

Almost surely, 2^25002213755 is an apocalyptic number.

25002213755 is a deficient number, since it is larger than the sum of its proper divisors (5000442757).

25002213755 is an equidigital number, since it uses as much as digits as its factorization.

25002213755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5000442756.

The product of its (nonzero) digits is 21000, while the sum is 32.

The spelling of 25002213755 in words is "twenty-five billion, two million, two hundred thirteen thousand, seven hundred fifty-five".